Tool for disconnecting hoses



Sept. 27, 1955 H. A. JACOBS TOOL FOR DISCONNECTING HOSES Filed March e, 1955 INVENTOR. Heamm AJAcoas 5772mm mm IQTTOR/VEYS Uited States Patent TOOL FOR DISCONNECTING HOSES Herman A. Jacobs, Chicago, Ill.

Application March 6, 1953, Serial No. 340,810

3 Claims. (Cl. 813) This invention relates to a hand tool adapted to loosen the end of a hose circumposed about and cemented to an associated tubular member, to facilitatedisconnection of said hose and tubular member.

In many instances, a hose end will be cemented to or otherwise adhesively secured about a tubular member, and it has been found that the freeing of said hose from its associated tubular member presents a real problem, requiring the expenditure of an excessive amountof time and labor before the hose is fully disconnected.

The main object of the present invention is to provide a simple hand tool which will be novelly designed in a manner that will permit the hose to be disengaged from its associated tubular member with maximum speed and facility. To this end, the invention, summarized briefly, constitutes a single length of stout rod or bar material bent to shape, to include a handle, and tips rigidly connected to the opposite ends of said handle in such a manner as to permit said tips to be inserted between the hose and tubular member, and worked circumferentially and longitudinally thereof. The tip is particularly formed to facilitate insertion thereof between the hose and tubular member, with minimum difliculty, said tip having an approximately semi-circular cross sectional shape, and being formed with a flattened, tapering, free end readily insertable between the hose and the member about which said hose is engaged. The handle is formed with obliquely extended end portions, said end portions merging into depending, arcuate, connecting portions with which the tips are made rigid. This construction spaces the tips laterally of the handle, thus to facilitate longitudinal movement of a selected tip, as well as transverse and rocking movement of the tip in its inserted position.

Another object of importance is to provide a tool as described which will be inexpensively formed, will be compact in size so as to permit the use thereof in con fined areas, and will be eificient in operation regardless of the diameters of the hose and tubular member to which the tool is applied.

Other objects will appear from the following description, the claims appended thereto, and from the annexed drawing, in which like reference characters designate like parts throughout the several views, and wherein:

Figure 1 is a top plan view of a hose loosening tool formed in accordance with the present invention, as it appears when in use, a tubular member and hose to which the tool is applied being illustrated fragmentarily and in elevation;

Figure 2 is a sectional view through the hose taken on line 22 of Figure 1, the tool being illustrated in side elevation, the dotted lines showing different positions to which the tool may be shifted during use;

Figure 3 is a transverse sectional view through the tool per se, taken on line 33 of Figure 2; and

Figure 4 is a fragmentary bottom plan view of the tool.

The reference numeral has been applied generally in the drawing to the tool constituting the present inven- "ice tion, the numeral 12 has been applied to a tubular member, and the numeral 14 has been applied to a hose circumposed about and adhesively secured to said tubular member.

In this connection, the tool is particularly well suited for loosening the hoses of vehicle radiators, and as will be appreciated, said hoses are often disposed in relatively inaccessible locations. The compact size of the tool is therefore an advantage in the construction which I have devised, since the tool can be readily shifted to any of the various positions shown in full and dotted lines in Figure 2, during loosening of the radiator hose.

The tool 10, as will be noted from the drawing, is bent to shape from a single length of rod or barmaterial of circular cross sectional shape, the tool being formed, medially between its ends, with a relatively elongated, straight bight 16 merging at its opposite ends into relatively short, straight end portions 18. The bight 16 and end portions 18 together constitute the handle of the device, and as will be noted from Figures 1 and 2, the end portions 18 lie in planes common to that within which the bight 16 is extended, said end portions extending obliquely to the longitudinal center line of the bight and diverging in a direction away from the bight.

At their outer ends, the end portions 18 of the handle merge into connecting portions 20. Connecting portions 20 extend laterally from the common plane of the end portions 18 and bight 16, and are curved longitudinally. The connecting portions are rel-ativly short, and at those ends of the connecting portions remote from the end portions 18, said connecting portions are integral with tips 22. The tips 22 are straight from end to end thereof, and as will be seen from Figure 1, are extended normally to the bight 16, the longitudinal center line of the bight intersecting with the longitudinal center line of each tip at a location medially between the ends of the tip. However, the tips are spaced laterally of the bight 16, the purpose of this construction being made apparent hereinafter. I

The tips 22 are identically formed, and the description of one will suflice for the other. Each tip 22, from end to end thereof, is relatively flat in cross section, each tip being formed, for the greatest part of its length, to a semi-circular cross sectional shape (Figure 2). As a result, each tip has a flat underside 24 engageable against the outer surface of the tubular member 12.

The free end portions of the tips are flattened as at 23, said free end portions being progressively reduced in thickness in the direction of the points or free ends of the tips.

Further, referring to Figures 1 and 4, it is seen that the sides of the point of each tip are longitudinally curved, and converge to impart a tapering configuration to the point.

The construction illustrated and described facilitates the insertion of a selected tip between the hose 14 and tubular member 12. The point of the tip is first worked between said hose and tubular member, and the handle is then pulled in the direction of the length of the tip, to shift the tip in the direction of its own length, until the tip is fully inserted.

The handle can then be shifted so as to move the tip transversely, and the tool will now have been moved to the dotted line position designated A in Figure 2. In this way, the tip can be worked circumferentially of the hose and tubular member, to free the hose.

At the same time, the tip can be rocked transversely thereof, or can be rocked longitudinally, in being worked about between the hose and tubular member.

If desired, the tip inserted between the tubular member and hose can be removed, and the other tip 22 inserted in its place, said other tip being then worked in an opposite direction with the tool being disposed in the dotted line position designated B in Figure 2. This construction facilitates use of the tool in relatively confined areas.

-It Will be seen from the above that despite the inexpensive construction of the tool, said tool is readily adapted to loosen any hose which is adhesively engaged with or otherwise tightly joined to a tubular member about which the hose is circumposed.

It is believed apparent that the invention is not necessarily confined to the specific use or uses thereof described above, since it may be utilized for any purpose to which it may be suited. Nor is the invention to be necessarily limited to the specific construction illustrated and described, since such construction is only intended to be illustrative of the principles of operation and the means presently devised to carry out said principles, it being considered that the invention comprehends any minor change in construction that may be permitted within the scope of the appended claims.

What is claimed is:

1. A tool for loosening a hose from a tubular member about which saidhose is circumposed, comprising: a handle including a straight bight and an end portion extending from one end of the bight, said bight and end portion lying in a common plane; a connecting portion extending from the outer end of said end portion; and a tip arranged perpendicularly to the bight and made rigid with and lying in the same plane as the connecting portion,

the tip being of approximately semi-circular cross section 3 and having, a flattened, tapering, pointed end for insertion of said tip between the hose and tubular member, said handle providing means for shifting the tip circumferentially and longitudinally of said hose and tubular member.

2. A tool for loosening a hose from a tubular member about which said hose is circumposed, comprising: a handle including a straight bight, and an end portion extending obliquely from one end of the bight, said bight and end portion lying in a common plane; an arcuate, reversely bent connecting portion extending from the outer end of said end portion; and a pointed tip arranged perpendicularly to the bight and made rigid with and lying in the same plane as the connecting portion, said handle providing means for shifting the tip into position between the hose and tubular member, and for moving said tip circumferentially and longitudinally of said hose and tubular member.

3. A tool for loosening a hose from a tubular member about which said hose is circumposed, comprising: a handle including a straight bight; a connecting portion at one end of the bight having a rigid connection to the bight; and a tip disposed perpendicularly to the bight and made rigid with and lying in the same plane as the connecting portion, said handle providing means for inserting the tip between the hose and the tubular member, and for shifting the tip' circumferentially and longitudinally of said hose and tubular member.

References Cited in the file of this patent UNITED STATES PATENTS 777,568. Terryberry Dec. 13, 1904 1,726,465 Bird Aug. 27, 1929 2,391,247 Knudtson Dec. 18, 1945 2,503,683 Perkins Apr. 11, 1950 

